Clear on custom filter

Clear on custom filter

sparkle1sparkle1 Posts: 4Questions: 0Answers: 0
edited April 2009 in General
Hello! DataTables is awesome, I love it!

I have a custom filter and I'd like to the visitor to be able to press a button to clear the custom filter so that it goes back to showing all results again. (Much like a form reset button).

Is this possible? Below is the code I have so far:

Thanks!


var oTable;
var jqFilter;

$(document).ready(function() {
jqFilter = $("input[name='custom_filter']");

oTable = $('#example').dataTable( {
sPaginationType: "full_numbers",
bFilter: false,
bSort: false,
bInfo: false,
bLengthChange: false,
aaSorting: [[0,'desc']]
} );

/* Add event handlers */
$('#filter_work').click( function() {
oTable.fnFilter( 'Work', 2 );
jqFilter.val('Work');
} );

$('#filter_events').click( function() {
oTable.fnFilter( 'Events', 2 );
jqFilter.val('Events');
} );

$('#filter_community').click( function() {
oTable.fnFilter( 'Community', 2 );
jqFilter.val('Community');
} );

$('#filter_fitness').click( function() {
oTable.fnFilter( 'Fitness', 2 );
jqFilter.val('Fitness');
} );

$('#filter_career').click( function() {
oTable.fnFilter( 'Career', 2 );
jqFilter.val('Career');
} );


$("input[name='custom_filter']").keyup( function() {
oTable.fnFilter( '', 2 );
oTable.fnFilter( this.value );
} );
} );





Search Latest News:



Work Related
Community
Events
Fitness
Career

Replies

  • allanallan Posts: 63,679Questions: 1Answers: 10,498 Site admin
    Hi sparkle1,

    Thanks for the compliments - much appreciated!

    It looks like you are most of the way there with what you are looking for. To clear the column filter you just need:

    oTable.fnFilter( '', 2 );

    Like you have in the keyup() function. Global filtering is achieved the same way ( oTable.fnFilter("") ). You will need to clear the text of the input element as well, which is just a case of setting the value of the text input to be blank ( $("input[name='custom_filter']").val('') ).

    Hope this helps,
    Allan
  • sparkle1sparkle1 Posts: 4Questions: 0Answers: 0
    edited April 2009
    Thanks Allan!

    I added this to the event handlers:

    $('#filter_all').click( function() {
    oTable.fnFilter( '', 2 );
    jqFilter.val('');
    } );


    and this to the navigation:

    All

    And it's working perfectly! Maybe it will help someone :)

    Thanks again :)
  • sparkle1sparkle1 Posts: 4Questions: 0Answers: 0
    One other question regarding this modification:

    Is it possible to give a class to the navigation when a certain category is clicked?

    For example, when the "Work Related" button is clicked, it should be given a class of "current":


    All
    Work Related
    Community
    Events
    Fitness
    Career


    Likewise, the "All" button should be given a class of "current" by default on page load??

    Thanks again, sorry for all the questions!
  • allanallan Posts: 63,679Questions: 1Answers: 10,498 Site admin
    Hi sparkle1,

    Again it looks like you are most of the way there with regard to the classes. To have the default as 'All', just have the 'current' class coded in the HTML (your last post shows it against 'Work Related').

    Then to change the class, you can use your click function - something like this:

    [code]
    $('#filter_community').click( function() {
    $('span.current').removeClass('current');
    $(this).addClass('current');
    oTable.fnFilter( 'Community', 2 );
    jqFilter.val('Community');
    } );
    [/code]

    Allan
  • dgtaylor22dgtaylor22 Posts: 16Questions: 0Answers: 0
    edited June 2009
    To clear the built-in search box you can use

    $("#XXXX_filter input").val('');

    Where XXXX is the name of your datatable. There may be a better JQuery way, but this works.

    This in connection with oTable.fnFilter(''); cleared the built-in search filter.
  • allanallan Posts: 63,679Questions: 1Answers: 10,498 Site admin
    Slight cross talk here perhaps? sparkle1's code was correct for his (her?!) usage since there is an HTML input box with the name "custom_filter". If you want to clear the filter for the built-in filtering option - then yes, this is the correct way to do it.

    Allan
  • dgtaylor22dgtaylor22 Posts: 16Questions: 0Answers: 0
    yeah, a little bit. I was trying to add how to clear the value in the built-in filter box here since this thread was the starting point for me. I clarified my initial post.
  • allanallan Posts: 63,679Questions: 1Answers: 10,498 Site admin
    Nice one - thanks for rounding it off. This question has been asked a couple of times, so I hope this will help others!

    Allan
  • npbnpb Posts: 1Questions: 0Answers: 0
    A bit more information for those using the [code]"bStateSave" : true[/code] option.

    It looks like you have to clear the saved state as well as the input fields before reset will work as you expect. For example, to reset the per-column searches properly, I had to do the following in addition to resetting the values and className as described above:
    [code]
    var oSettings = jQuery('#exampletable').dataTable().fnSettings();
    for ( var i=0 ; i
  • amythamyth Posts: 4Questions: 0Answers: 0
    I'm doing something which is pretty much the same as Sparkle1.

    Data table that has in it's DOM a search all div that has got a drop down list with column names and a text box with search and reset buttons. The user selects the column that they want to search, enter the search text and click search.

    The Search functionality works a treat :) however I'm having a bit of a problem with the "Reset" of the grid.

    $('#TableReset').click(function() {
    oTable.fnFilter('', $('#DDLSearchColumn').val());
    });

    The reset works perfectly fine when the user searches for "Column 1" and stays on that ddl option when clicking reset. However, if they change the DDL option and click the "Reset" it doesn't work. I can see why that would not work as the sSearch_0 will still have the search criteria and when the user changes the DDL the reset function above will be trying to fnFilter on a completely different column.

    I don't know what I can do now!

    Any 'pointing in the right direction' is much appreciated.
  • amythamyth Posts: 4Questions: 0Answers: 0
    I have found a way to reset the datatable but it comes at a high cost.

    Currently, I am doing this:

    var colCount = $('#DDLSearchColumn option').size();
    for(i=0;i<=colCount;i++){
    oTable.fnFilter('', i);
    }

    What I hate about the above code is that the number of columns on my datatable is 17!! That is how many times it is going to the server!

    There has got to be a better way!
This discussion has been closed.